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A083240 Primes p[j] such that p[j]-j is a true power of prime. 1
37, 47, 163, 167, 647, 881, 1151, 1627, 3271, 5179, 5659, 11597, 13799, 18503, 31259, 43331, 44201, 76441, 163883, 277231, 391067, 402487, 630493, 643703, 809407, 985679, 1170311 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

A001221[a[n]-A000720[a[n]]]=1 and a[n]-A000720[a[n]] is in A025475.

EXAMPLE

term 11597 is the 1396th prime and

11597-1396=10201=101.101;

MATHEMATICA

Do[s=Prime[n]-n; If[Equal[Length[FactorInteger[s]], 1]&&!PrimeQ[s], Print[Prime[n]]], {n, 1, 100000}]

CROSSREFS

Sequence in context: A159750 A108333 A039465 * A162556 A129072 A074401

Adjacent sequences:  A083237 A083238 A083239 * A083241 A083242 A083243

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Apr 24 2003

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Last modified February 14 02:58 EST 2012. Contains 205567 sequences.